Oscillating door.



D. B. BRYAN, DECD. M. B. BRYAN, ADMINISTKATBIX.

OSCILLATING DOOR. APPLICATION FILED JAN. 17, 1913. 1,1 02,568, Patented July 7, 1914.

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Patented July 7, I914 D. B. BRYAN, DEC'D. m. B. BRYAN. ADMINIBTRATRIX.

OSOILLATING DOOR.

APPLICATION FILED JAN.17, 191s.

Patented July 7, 1914,

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413 A ro/Mr YTNITED STATES PATENT OFFICE.

DANIEL B. BRYAN, OF FLUSHING, NEW YGBiK; MARY B. BRYAN .A'DMINISTRATRIX OF SAID DANIEL IB. BRYAN, DECEASED.

osoILLAmNG noon.

Speciflcation'ef Letters Patent.

Patented July 7, 1914.

Application filed January 17,1913. Serial No. 742,619.

To all whom it may concern:

Be it known that I, DANIEL B. BRYAN, a citizen of the United States, and a resident of Flushing, county of Queens, State of New York, have invented certain new and useful Improvements in Oscillating Doors, of which the following is a description.

My invention relates to improvements in oscillating doors or storm doors designed chiefly to protect the doorways into oflice buildings, hotels or the like, through which large numbers of persons are likely to pass in both directions.

The objects of my invention are generally to provide a structure of this character which is more eflicient, inexpensive and simpler than the structures commonly in use intended for the same urpose.

Particular objects 0 my invention relate to the provision of a pivoted door mounted to oscillate between two positions of rest in each of which it closes the opening and is yieldingly held in contact with its seat in each position; and to the rovision of devices of this character whic 1 are ada ted to be collapsed or displaced readily by t e rush of a crowd of people in time of fire or panic to leave the opening unobstructed.

Other obects of my invention reside in the features 0 constructions and combinations of elements hereinafter more particularly described and particularly pointed out in the appended claims.

Attention is hereby directed to the accompanying drawings forming part of the specification, in which Figure 1 represents a top plan view of one.

form of my improved doorway mounted in position within a vestibule; Fig. 2 represents a partial top plan view of the same showing the door in collapsed position; Fig. 3 represents a partial vertical section upon the line 3-'3 of Fig. 1; Fig. 4 represents a vertical section upon the line 4-4 of Fig. 3; Fig. 5 represents a partial side elevation of the door shown in Fig. 1; Figs. 6, 7 and 8 represent partial cross sections taken upon the line 6-6, 7-7, and 88 respectively of Fig. 5; Fig. 9 represents to reduced scale, a cross section taken upon the line 9'9, Fig. 1; Fi 10 represents a top plan view of a mod' ed form of my invention; Fig. 11 represents a partial .side perspective view of t e upper part of the door illustrated in Fig. 10, mounted in position; Fig. 12 is a detail vertical section through the upper part of the door illustrated in Fig. 11, showing the construction of the ivot means therefor; Fig. 13 is a section ta en on line 13-13 of Fig. 12; and Fig. 14 is a view similar to Fig. 13 showing the upper door pivot in displaced position.

Referring first to Figs. 1 to9 of the drawings, the door 1 is centrally pivoted within a vestibule or casing 2 havlng door seats 3, 3" and 4, 4, between which the door is adapted to oscillate. Referring to Fig. 1, the door 1 is shown in closed position with its opposite edges contacting the seats 3, 4, in which position the doorway is closed. Considering the opening between the door seats 3 and 3 at the top of Fig. 1 to be the entrance into a building, a person enter ing the same would enter the vestibule 2 in the direction of the arrow in Fig. 1 and pressing upon the door 1 would move the same into the dotted line position 3, 4, and enter the building. The door would now be closed in the position 3', 4, and a person now entering the building would onter the vestibule 2 to the right instead of to the left, as previously, and would, in entering, push the door from its dotted line to its full line position. Correspondingly, persons leaving the building would push the door from one position of rest to the other. In the embodiment of my invention here illustrated, the door 1 is pivoted at its central vertical axis by a means to be described, although my invention is not limited thereto. The door 1 is provided with a square cut opening 5 extending downwardly from its top sur ace half-way between its two side edges as shown, a cylindrical hole 6 extending downwardly into the door from the bottom of the square or angular cut recess 5. A member 7 is slidably mounted within opening 5 and is shaped to accurately fit the same. Sliding block 7 carries a rod or plunger 8 integral therewith or secured thereto and extending downwardly from the lower surface thereof and with its lower end extending into the cylindrical hole 6. A spiral spring '9 surrounds rod 8 and bearing against the bottom surface of opening 5 and the lower surface of block 7 tends to hold block 7 in raised position. The top frame member 10 comprising a horizontal or roof member of vestibule 2 has an opening 11 therethrough through which slidin block 7 extends. An arm 12 is formed with a boss 13 the inner. surface of which is square or is otherwise shaped to slidingly fit upon block 7. Boss 13 is cylindrical upon its periphery and is mounted to rotate within bearing member 14 secured to the upper side of horizontal frame member 10. Boss 13 is preferably formed with a flange 15 seated within a corresponding recess in lug 14 to hold arm 12 in position. Parts 12, 13 and 14 may be assembled in any desired manner, as by having bearing member 14 formed in two or more sections, which are secured to frame member 10 after being mounted about boss 13.

Door 1 is provided with a similar pivoting means at the bottom, in alinement with that just described. The door is provided with an opening 16 extending upwardly from its bottom surface which openin may be either circular or square or angu ar in cross section, but it is preferably circular. A smaller cylindrical opening 17 extends upwardly from the center of the upper surface of recess 16. Sliding member 18 is mounted within recess 16 with its lower end seated within a socket 19 in the floor or foundation beneath the vestibule. A pin 20 extends upwardly from the upper surface of block 18 with its upper end extending into the hole 17 and a coil spring 21 surrounds pin 20 within opening 16 so as to hold member 18 in position in socket 19. In the drawings, recesses 5 and 16 are represented as extending clearacross the thickness of door 1 and in this construction plates 22 and 23 at the top and plates 24 and 25 at the bottom are represented as being bolted or otherwise secured to door 1 and to each other to cover recesses 5 and 16 and to furnish bearing surfaces for the blocks 7 and 18 upon the sides of the door. A ball bearing 26 is provided at the bottom of the door surrounding member 18 and forming a rotary support for the door. Arm 12 has a spiral spring 27 secured at one end to the outer end thereof, the other end. of the spring being secured by an adjustable bolt 28 or in any other suitable manner to a bracket 29 secured to the top of frame member 10. The function of this spring is to hold the door yieldingly in either of its closed positions 3, 4, or 3', 1. It also aids in closing the door in either position since, when the door is moved away from position 3, 4, the sprin 27 is first put under tension untii the axis of the spring and of the arm 12 coincide at which time the door has moved exactly half-Way from one closing position to the other. As soon as the door has passed this center, the spring acts to close the door into the other position of rest.

The result of this construction, as will readily be seen, is a centrally pivoted door which oscillates through a limited are, that is, preferably an arc of less than 90 degrees, first in one direction and then in the other in front of a door opening, the oscillation of the door not being toward and away from the opening as in the case of ordinary swinging doors, but across the opening so that its movement does not tend to force air into or out of the building as in the case of swinging and revolving doors, but tends rather to move the air across the opening so that no violent draft through the opening can be caused. Since the door closes against door seats for its entire height, on both side edges, a positiveclosure is always effected and since the door does not maintain frictional contact during its movement with the walls of a cylindrical vestibule, as in the case of the ordinary revolving door, frictional loss, wear of expensive rubber pieces and consequent air leakage are prevented. A number of persons can enter or leave by the door at the same time and therefore the danger which might possibly arise from the passage of an unaccompanied child or feeble person throu h a revolving or similar door is pre vente The sliding blocks 7 and 18 may carry pins 30 and 31 which extend outwardly through slots 32, 33, which can be pushed downwardly and upwardly respectively, to remove sliding blocks 7 and 18 from frame member 10 and socket 19 in the floor respectively, when it is desired to remove the door in the summer months for example. For holding pins 30 and 31. in their depressed and raised positions respectively, latches of any suitable kind may be provided. Such a latch is shown in position in Fig. 5, to hold the pin 30 in its depressed position, the bolt 34 being illustrated as shot into position to hold the pin 30 depressed, and member 7 being in withdrawn position.

One feature of my invention is the provision of means whereby the door may be collapsed or displaced by the rush of a crowd therethrough in time of fire or panic. A construction for permitting the door to be thus collapsed is illustrated in Figs. 1 to 9, inclusive, in which the door 1 is not an integral construction, but is composed of two vertical leaves or sections 35 and 36. The

pivot and bearing means described are contained in the section 35 as illustrated. Section 36 is pivotally connected to section 35 by means of lugs or arms 37 and 38, which,

secured to the top and bottom of section 36 and extend beyond the edge thereof. Arm 37 is formed at its end with a ring shaped member or boss 39 within which is mounted a ring or washer 40 having a cylindrical peri hery rotatably engaged by the inner sur ace of'ring 39 and having a s uare interior slidably fitted upon member Since in the form illustrated in the drawings, are i sliding member 18 at the bottom of the door is, in the .form illustrated, cylindrical in shape, the washer 40 just described is not necessary at the bottom of the door, and here the arm 38 is provided at its outer end with a ring shaped portion 41 through which member 18 passes and slidably fits. Arm 38 is illustrated as having an off-set portion in which boss 41 is termed for the purpose of roviding room for the bearing 26 upon which the door rests.

It is seen that by this construction the door sections and 36 are pivoted together so that section 36 through its arms 37 and 38 may pivot about ring or washer 40 and sliding member 18 respectively. The two secticns are arranged with their adjacent edges contacting and in order to keep the sections normally in al'ncment and to prevent the collapsing of the door during normal or ordinary operation, yieldable clutch or securing means must be provided. These devices, in the form illustrated, take the form of plungers 42 mounted in suitable recesses formed on the edge of door section 36 and pressed forwardly by springs 43 mounted behind plungers 42 in their recesses, so as to force the rounded or conical ends 44 of the plungers into the corresponding shallow sockets 45 formed in the adjacent edge of door section 35. These devices normally hold the two door sections together in one plane with their adjacent ed tacting, one of the said edges as 47 being slightly rounded at the corners as shown in Figs. 7 and 8, to permit pivotal. movement of the sections with respect when the door is colla sed. In this construction the adjacent e ges of the door sections are preferably located in the vertical plane of t 42, 45 are located.

plunger-s and sockets the disengagement of With this construction the plunger-s 42 from their sockets is tollowed b the lungers being again pressed forward y by t eir springs after the ed e of; section 36 has asscd be ond the edge 0 section 35 to yiel 'ngly ho d the two sections in their collapsed or non-obstructing position, as shown in Fig. 2, the sections 35, 36 contacting respectively door seats 3 and 4. The adjacent edges of the sections are so formed as shown, that the upper and lower portions of the joint are located to the right of the central axis of the door, as shown in Fig. 3, to provide room for plates 22, 23, 24 and 25 sliding members 7 and 18, etc.

a he result of the construction just described is that in normal operation door sections 35 and 36 act together as a single oscillating member. In the case of a panic within the building, however, the persons crowding out through the vestibule 2 will press upon both leaves 35 and 36 of the door ges 46, 47, coni to each other c axis of the pivots, at that portion of the said edges in which the coacting I upon both sides of the pivot thereof, as indicated by the arrows in Fig. 2, with the result that plungers 42 are forced from their sockets 45 and the door collapsed into the position shown in 2, in which it is held by plungers 42 permitting unobstructed passage through the opening on one side of the door. It may, however, be deemed desirable to entirel remove or displace the door in time olf or panic to one side of the vestibule, so as to leave a wider opening for the passage of the crowd in such cases. One form of my device embodying this feature is illustrated in Figs. 10 to 14, inclusive. As there shown, the door 1' is composed of a single piece, centrally pivoted as in the first form o'f my invention, to oscillate back and forth between the full line position contacting door seats 3, 4, and thedotted line position contacting door seats 3, 4. The central pivoting means, however, is arranged to be entirely displaced by abnormal pressure upon the side of the door, as in the case of a crowd rushing blindly against the same, to permit the movement of the door entirely to either side of the vestibule, as shown; for example by the dotted line position 1 shown in Fig. 10. In this construction the door is supported and guided at its edge or edges after the central pivotal means have been displaced, as will now be described.

The arrangement of displaceable central pivota means which I prefer is illustrated in Figs. 11 to 14 inclusive, illustrating the ivoting means at the to of the door it ein understood that this construction is duphcated at the bottom of the door for the bottom central pivot. The door is provided with a cylindrical opening 5 extending downwardly from its top surface, the axis of opening or recess 5' being located in the central vertical axis of the door. A ball bearing 48 is placed at the bottom of this opening and upon the bearing rests a cylindrical member 49 mounted within the opening for rotation of the door thereabout. This member 49 is provided at its upper end with a pair of upstanding lugs or ears .0 between which is fitted the tongue 51 of a second ivot member 52, the members 49 and 52 lieing pivotally secured together by the pin 53 extending through lugs and tongue 51, members 49 an 52 fitting together in such a manner as to normally be in alinement with opening 5. Member 52 is formed with an angular inclined end 54 which may be a pyramid of square or other cross section, which is normally seated in a corresponding socket 55 of block 56 secured to horizontal frame member 10, or the end 54 and socket are otherwise formed to nonrotatably and removably engage. The tongue 51 of member 52 is formed with a rounded socket at the lower end thereof and member 49 is provided with an axial hole 57 below the tongue 51. A plunger 58 is located in this hole and pressed upwardly by spring 59 so that the plunger yieldingly engages the socket in tongue 51 to normally hold members 49 and 52 in alineinent. As stated, the construction at the bottom of the door not illustrated, is the same, a member similar to 52 being seated in a corresponding socket in the floor or base plate of the vestibule and being pivoted in the some manner as described to a member similar to -19 above the same, a ball bearing like lo being located above this last mentioned member upon which the door rests. \Yith this etmstruetion the door is supported by and pivots about the two alined pivot members at top and bottom. When, however, because of abnormal pressure on the side of the door caused by a ru h of persons out of the building, for eX- ample. pushing against the door 1' in the manner illustrated by the arrows in Fig. 10, For example, plnngers 5S will be forced out of their sockets in tongues 51 against the pressure of springs .39 and pivot members 5; at top and bottom will be forced by the pressure to rotate about pins 53, causing the diseitgagenient of the same from their sockets if Hlots (it) are provided in door 1' at top and bottom to permit the pivotal movement at members 52 as illustrated in Fig. 14. \Vith the construction illustrated, the door swinging about stationary pivot members, pins 53 will be exactly parallel with the door only when it is in one position, which preferably should be the position midway between its two closed positions. This lack of parallelism, however, will not be stiflit'ient to prevent the desired swinging of numbers 12 about pins 53 when sufiicient pressure is exerted against the door, since in pint-tire the door oscillates through an aeute angle only.

Door 1" must be provided with means for supporting the same and guiding it to its new unob trut-ting position when the (entral pivoting means are displaced in the manner described. This is accomplished in the form illustrated in the drawings by the provision of brackets (31, 62, upon the opposite top corners of the door which brackets carry horizontal pins 63. (it. upon which are mounted rollers: (35, tit}, adapted to rotate upon traelis tit". UH. These rollers need not actually contact their tracks during the normal operation of the door or else contact the same lightly. the door being preferably supported by the central pivotal arrangement described. 'hen the central pivots are displared, however, in. the manner described, the weight of the door will be brought entirely upon rollers 65 and (t6 and the door thus supported nmvably at its edges.

For holding the door to its seat during its oscillating movement and to assist in the closing movement thereof, the spring 27 may be provided acting in the same manner as spring 27 illustrated in Fig. 1. This spring is illustrated as connected to the top of the door at one end at the point 69 and secured at its other end to a bolt 28 secured to a bracket 29 located on the top frame member half-way between the door seat positions 4 and 4'. The result of this mounting is that the spring is extended through the first half of the pivotal movement of the door away from one of its closing positions, and the retraction of the spring during the last half of the movement aids in closing the door. lheret'ore, this form of my device will always be in one closed position or the other, the same as in the case of the first; ronstrnetion. described, except during the brief interval of time in which the door is passing from one closed position to the other. Consequently, in case of fire or panic within the building, and rush of persons out of the same, the inner end of the door will rest in contact with door seat 3-3' and its outer end in contact with seat 4, or else the door will rest in position 3, 4. The result. will be the same in either case. Considering the top of Fig. 10 as the entrance into the building and the door being in its full line position 3, 4, the crush of persons pressing upon the door as illustrated by the arrows on both sides of the central pivot, Will rause the dislocation of the central pivot members as described, the door then swingingabout roller 65 as an axis, the outer edge of the door being guided by the rolling engagement of roller 66 with track 68. The door is thus swung into the dotted line position 1", in which it is held yieldingly by spring 27', the inner edge of the door resting in contact with the seat 3 and the outer edge of the door extending beyond the seat 1'. Since the outer edge of the door in this movement swings through a larger arc than during its normal operation, the track 68 should be made sufficiently wide to aconnnodate roller 66 during such movement.

It should be understood that my invention is not limited to the exact details of construeticn' claimed, but that all proper equivalents of the mechanism described are included in my invention, which is as broad as is indicated by the appended claims.

Having now described my invention What claim and desire to protect by Letters Patent is:

1. In a door structure, the combination with a stationar framework containing a passageway, of a centrally-pivoted door mounted in said passageway and adapted and constructed to close the same when extending diagonally thereacross, and to swing about its pivot through an arc of less than 90 degrees from one position of contact with the walls of said passageway to another position in which the edges of said door contact the opposite walls of said passageway frond those contacted in the first position, but not to swing beyond said positions of contact, and yielding means for holding said door in either position of contact.

2. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a centrally pivoted door within said frame adapted to oscillate through an arc of less than 180 degrees between two positions of contact with doorscats formedon said frame, in both of which positions it obstructs passage through the doorway and extends diagonally across the same, and means yieldingly pressing said door toward either position of rest until it has moved part way therefrom toward its other position of rest, and thereafter pressing said door toward such other position.

3. In a door structure, the combination with a stationary framework containing a passageway and having two pairs of door seats, of vertical pivot means, a door centrally mounted thereon to oscillate between positions of positive contact with said pairs of door seats respectively, in each of which positions the door extends diagonally across said passageway at an acute angle therewith, and a spring secured to said door and to said framework at points so chosen that said spring resists movement of said door from either position of rest until a art of the dis-j tance to the otherposition 0 rest has been covered, and thereafter aids movement of said door toward said second position, of rest.

4. A collapsible door comprising a door section, pivot means mounted therein adjacent one edge of said section, a second section having lugs or arms thereon extending beyond oneedge rotatably mounted on said pivot means, said sections being normally in alinement with their adjacent edges contacting, interlocking clutch members on the two sections adjacent said edges for normally holding said sections in alinement, and spring means for normally holding said clutch members in contact.

5. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a pivoted door within said frame adapted to oscillate through a limited are between two positions of contact with door seats formed on said frame, in both of which positions it obstructs passage through the doorway, said door comprising two sections pivoted together with their adjacent edges in contact, and means for normally holding said sections in alinement, yieldable underabnormal pressure upon both of said sections to cause said sections to move pivotally with respect to each other.

6. A collapsible door comprising two vertical sections normally in alinement with their adjacent edges contacting, alined pivot means mounted in one section adjacent one edge and at the top and bottom thereof, coacting means on the other section rotatably secured to said pivot means for holding said sections together, spring pressed means mounted adjacent the inner edge of one section coacting with the adjacent edge of the other section for holding said seztions normally in alinement, and means for mounting said door to swing about the axis of said pivot means.

7. Ina door structure, the combination with a frame, protecting a passageway, of a door, ivotal means for normally restraining said door to movement about its central vertical axis, said means being adapted to be rendered inoperative by abnormal pressure upon a side of the door, and means for causing pressure upon said side thereafter to move said door entirely to one side of the passageway.

8. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a door centrally pivoted in said vestibule, central pivoting means for said door constructed to be displaced by abnormal pressure upon a Side of said door, and means for guiding said door to a position at one side of said vestibule after displacement of said pivoting means.

9. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a door mounted therein, means forsupporting said door centrally, adapted to be rendered inoperative by abnormal pressure upon a side of the door, and means for supporting said door at its edges after said first supporting means have been rendered inoperative.

10. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a door mounted therein, means for supporting said door for pivotal movement about its central vertical axis, capable of being rendered inoperative by abnormal pressure upon a side of the door, and means for supporting said door for pivotal movement about one edge, effective after said first supporting means have been rendered inoperative.

11. In a door structure, the combination with a frame protecting a doorway, provided with door seats, and constituting a vestibule, of a door pivoted intermediate its edges adapted to oscillate through an arc of less than 90 degrees and to come to rest in either of two positions, in positive contact with said door seats, in each of which positions the door extends diagonally across said doorway, closing the same, and a sprin cured at one end to said door at one si e of its pivotal axis and secured at its other end to said frame on the other side of the pivotal axis of the door and intermediate between the pos ions of rest of the adjacent edge of the door, so that said spring resists movement of said door from either position of rest until a part of the distance to the other position of rest has been covered, and thereafter aids movement of said door toward said second position.

12. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a door centrally pivoted in said vestibule,. central pivoting means for said door constructed to be displaced by abnormal pressure upon a side of said door, means for guiding said door to a position in which said doorway and vestibule are left unobstructed, after displacementof said pivoting means, and means tending to hold said door in such unobstructing position. I

13. In a door structure, the combination with a frame protecting a doorway, of a pivoted door mounted to close said doorway when in closed position, yielding means tending to hold said door in closed position, and central supporting means for said door constructed to be displaced by the abnormal rush of a crowd through the doorway to permit the displacement of said door thereby to a non-obstructing position.

14. In a door structure, the combination .with a frame of a door, movable pivot means for supporting said door, adapted to be displaced by lateral pressure on said door, and yielding means for holding said pivot means in supporting position.

15. In a door structure, the combination with a frame of a door, movable pivot means for supporting said'door, adapted to be displaced by lateral pressure on said door, and means for movably supporting said door after the displacement of said pivot means.

16. In a door structure, the combination with a door of pivotal means therefor comprising two members pivoted together and clutch means for yieldingly holding said members in alinement.

17. In a door structure, -the combination with a frame of a door and means for displaceably pivoting said door to said frame comprising at both the top and bottom of said door a cylindrical member, a member in normal alinement therewith pivoted thereto and bearing within a socket in said frame, and means for holding said'two members in normal alinement comprising a spring-pressed plunger on one of the same coacting with a socket on the other.

This specification signed and witnessed this 15th day of January 1912.

DANIEL B. BRYAN.

Witnesses:

DYER SMITH, Sorma M. BAEDER.

to said frame on the other side of the pivotal axis of the door and intermediate between the postions of rest of the adjacent edge of the door, so that said spring res1sts m0vement of said door from either position of rest until a part of the distance to the other position of rest has been covered, and thereafter aids movement of said door toward said second position.

12. In a door structure, the combination with a frame protecting a doorway and constituting a vestibule, of a door centrally pivoted in said vestibule,. central pivoting means for said door constructed to be displaced by abnormal pressure upon a side of when in closed position, yielding means tending to hold said door in closed position, and central supporting means for said door constructed to be displaced by the abnormal rush of a crowd through the doorway to permit the displacement of said door there by to a non-obstructing position.

14. In a door structure, the combination .with a frame of a door, movable pivot 'means for supporting said door, adapted to be displaced by lateral pressure on said door, and yielding means for holding said pivot means in supporting position.

15. In a door structure, the combination with a frame of a door, movable pivot means for supporting said'door, adapted to be displaced by lateral pressure on said door, and means for movably supporting said door after the displacement of said pivot means.

16. In a door structure, the combination with a'door of pivotal means thereforcomprising two members pivoted together and clutch means for yieldingly holding said members in alinement. l

17. In a door structure, -the combination with a frame of a door and means for displaceably pivoting said door to said frame comprising at both the top and bottom of said door a cylindrical member, a member in normal alinement therewith pivoted thereto and bearing within a socket in said frame, and means for holding said two members in' normal alinement comprising a spring-pressed plunger on one of the same coacting with a socket on the other.

This specification signed and witnessed a this 15th day of January 1912.

DANIEL B. BRYAN.

Witnesses:

DYER SMITH, SOPHIE M. BAEDER.

[smr..]

Correction in Letters Patent No. 1,102,568.

It is hereby certified that in Letters Patent No. 1,102,568, granted July 7, 1914, upon the application of DanielB. Bryan, of Flushing, New York, for an improvement in Oscillating Doors, an error appears in the printed specification requiring correctionas follows: Page 6, line 27, before the word supporting insert the wordpivotal; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiiee.

Signed and sealed this 4th of August, A. D. 1914 J: 'r. NEWTON,

40m 0mm qfPm.

It is hereby certified that in Lettera Patent No. 1,102,568, granted July 7, 1914, upon the application of Daniel B. Bryan, of Flushing, New York, for an improvement in Oscillating Doors, an error appears in the printed specification requiring correctionasfollows: Page 6, line 27, before the word supporting" insert the word pivotal; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 4th day at August, A. 1)., 1914 J. T. NEWTON,

Acti/ng Cmmniuiomr QfPcdents. 

